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4A0-C01 · Question #234

Which of the following regarding IS-IS DIS is FALSE?

The correct answer is D. In broadcast multi-access networks, such as Ethernet, one router is elected as the DIS and a second router as the backup DIS. See the full explanation below for the reasoning.

Question

Which of the following regarding IS-IS DIS is FALSE?

Options

  • AL1 and L2 routers elect separate DIS's.
  • BDIS uses a specific Ethernet multicast address to communicate with other routers on the broadcast network.
  • CIf a new router starts up in a LAN and has a higher interface priority, the new router preempts the original DIS and becomes the DIS.
  • DIn broadcast multi-access networks, such as Ethernet, one router is elected as the DIS and a second router as the backup DIS.

How the community answered

(19 responses)
  • A
    11% (2)
  • C
    5% (1)
  • D
    84% (16)

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Full 4A0-C01 Practice